28 I. IJIMA : IIEXACTINELLIDA. I. 



Mr. OwsïON had made persevering efforts, long in vain, to 

 secure a specimen of tins Gasteropod and had caused circulars, 

 containing pictures of it and offers of tempting rewards, to be 

 widely distributed among the fishermen in general. One day in 

 1894, KuMA again incidentally angled a large and beautiful 

 snail, which he thought might prove to be the one that the 

 Yokohama naturalist and no less the Sei. Coll. Museum were in 

 want of. It had swallowed the dabo-line hook baited with cuttle- 

 fish. He brought it to us and returned home very handsomely 

 renumerated for his trouble. Thenceforth Pleurotomaria beyinchi, 

 till then without a Japanese name, began to go among the Misaki 

 dabo-liners under the title of ' Choja-gai,' or the ' Millionaire 

 Shell.' Mr. Owstox now knew precisely the particular kind of 

 fishermen to whom he could direct his circulars with some pro- 

 bability of success. He acted accordingly and the result was 

 that ere long he became the happy possessor of several 

 ' Millionaire Shells.' 



I think I have said enough to show that the dabo-line — in 

 fact all the so-called long-lines, provided they are sufficiently strong 

 but not unwieldy — can be of immense service to zoologists. The 

 fact that a number of valuable specimens had been obtained in- 

 cidentally by a similar kind of fishing arrangement in other parts 

 of the world has long stood on the records. For instance we 

 learn from Bakboza du Bocage ('65 & '70) and Pekcival 

 Wright ('68) that the first Hexactinellids that became known 

 from the Portuguese coast {Hyalonema lusiianicum, Fheroncma 

 carpenteri) were taken by fishermen while shark-fishing by means 

 of a rope in length some GOO fathoms, 30 or 40 fathoms of 

 which liad iastened to it a series of snoods and baited hooks. 

 When the Portuguese fishermen bring up Hyalonema, as they 



